The Influence of the Matrix on the Apatite-Forming Ability of Calcium Containing Polydimethylsiloxane-Based Cements for Endodontics.

ABSTRACT: This study aimed to characterize the chemical properties and bioactivity of an endodontic sealer (GuttaFlow Bioseal) based on polydimethylsiloxane (PDMS) and containing a calcium bioglass as a doping agent. Commercial PDMS-based cement free from calcium bioglass (GuttaFlow 2 and RoekoSeal) were characterized for comparison as well as GuttaFlow 2 doped with dicalcium phosphate dihydrate, hydroxyapatite, or a tricalcium silicate-based cement. IR and Raman analyses were performed on fresh materials as well as after aging tests in Hank's Balanced Salt Solution (28 d, 37 °C). Under these conditions, the strengthening of the 970 cm^-1 Raman band and the appearance of the IR components at 1455-1414, 1015, 868, and 600-559 cm^-1 revealed the deposition of B-type carbonated apat

SUBMITTER: Taddei P 

PROVIDER: S-EPMC9504520 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature